SYNTHORA

[
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "1600000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/derivbundle",
        "description": "002 call (cheaper + fewer round-trips than buying each separately) 5 live datasets, partial degradation (never fails whole), Ed25519-signed First call FREE per wallet via X-WALLET header SYNTHORA.",
        "maxAmountRequired": "1600000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/derivbundle",
      "tags": [
        "crypto",
        "markets",
        "derivatives",
        "price",
        "defi",
        "onchain"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "002 call (cheaper + fewer round-trips than buying each separately) 5 live datasets, partial degradation (never fails whole), Ed25519-signed First call FREE per wallet via X-WALLET header SYNTHORA.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "asset": "BTC"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "schema": {
              "type": "object",
              "required": [
                "ok",
                "niche"
              ],
              "properties": {
                "ok": {
                  "type": "boolean"
                },
                "error": {
                  "type": "string"
                },
                "niche": {
                  "type": "string"
                },
                "result": {
                  "type": "object",
                  "properties": {
                    "asset": {
                      "type": "string"
                    },
                    "partial": {
                      "type": "boolean"
                    },
                    "datasets": {
                      "type": "object"
                    },
                    "datasets_ok": {
                      "type": "number"
                    },
                    "datasets_total": {
                      "type": "number"
                    }
                  }
                },
                "receipt": {
                  "type": "object"
                }
              }
            },
            "example": {
              "ok": true,
              "niche": "derivbundle",
              "result": {
                "asset": "BTC",
                "partial": false,
                "datasets": {},
                "datasets_ok": 4,
                "datasets_total": 4
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [],
                  "properties": {
                    "asset": {
                      "type": "string",
                      "description": "asset symbol e.g. BTC/ETH"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/websearch",
        "description": "Keyless web search for AI agents, pay-per-call, no API key and no signup: natural-language query in, ranked organic results out (title, url, snippet) with source list. Neutral web access for research, RAG grounding and fact-check agents that cannot hold search API keys. $0.05 USDC x402 Base. Input: {\"input\": \"your query\"}. Ed25519-signed.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/websearch",
      "tags": [
        "search",
        "entities",
        "knowledge",
        "x402",
        "signed-verdict",
        "usdc"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Keyless web search for AI agents, pay-per-call, no API key and no signup: natural-language query in, ranked organic results out (title, url, snippet) with source list. Neutral web access for research, RAG grounding and fact-check agents that cannot hold search API keys. $0.05 USDC x402 Base. Input: {\"input\": \"your query\"}. Ed25519-signed.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "query": "latest x402 protocol spec",
              "extract": true,
              "max_results": 5
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "websearch",
              "result": {
                "count": 5,
                "query": "latest x402 protocol spec",
                "source": "duckduckgo_html",
                "results": [
                  {
                    "url": "https://example.com/spec",
                    "title": "x402 spec",
                    "snippet": "..."
                  }
                ],
                "elapsed_ms": 1200,
                "answer_source": "md_extract",
                "answer_extract": {
                  "url": "https://example.com/spec",
                  "chars": 1234,
                  "title": "x402 spec",
                  "markdown": "# ...",
                  "extractor": "md_extract",
                  "tokens_estimate": 300
                }
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "query"
                  ],
                  "properties": {
                    "query": {
                      "type": "string",
                      "description": "Natural-language search query"
                    },
                    "extract": {
                      "type": "boolean",
                      "description": "If true, also fetch the top result and return its main content as clean markdown (answer_extract). Default: auto (extracts when a first URL is available)."
                    },
                    "max_results": {
                      "type": "integer",
                      "description": "How many results to return (1-20, default 8)"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/agentcard",
        "description": "Agent Card Validator (A2A): given an Agent Card URL or JSON, deterministically validates it against the A2A spec — required fields, skill schemas, endpoint reachability, security schemes, provider transparency — and returns a compatibility_score, schema_errors and warnings. The trust layer for the agent economy. Deterministic, Ed25519-signed. 0.01 USDC via x402 on Base. SYNTHORA.",
        "maxAmountRequired": "10000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/agentcard",
      "tags": [
        "agentcard"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Agent Card Validator (A2A): given an Agent Card URL or JSON, deterministically validates it against the A2A spec — required fields, skill schemas, endpoint reachability, security schemes, provider transparency — and returns a compatibility_score, schema_errors and warnings. The trust layer for the agent economy. Deterministic, Ed25519-signed. 0.01 USDC via x402 on Base. SYNTHORA.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "card": {
                "url": "https://example.org",
                "name": "Demo Agent",
                "skills": [
                  {
                    "id": "chat",
                    "name": "chat",
                    "description": "conversational"
                  }
                ],
                "version": "1.0.0",
                "description": "A2A agent card audit demo"
              }
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "agent_card",
              "result": {
                "signed": "ed25519",
                "verdict": "buena",
                "warnings": [
                  "falta campo recomendado: documentationUrl"
                ],
                "skills_count": 1,
                "schema_errors": [],
                "a2a_conformant": true,
                "endpoint_status": 200,
                "pricing_declared": false,
                "security_declared": true,
                "compatibility_score": 82
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "url": {
                      "type": "string",
                      "description": "URL of the A2A Agent Card (.well-known/agent-card.json)"
                    },
                    "card": {
                      "type": "object",
                      "description": "Or paste the Agent Card JSON directly"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "150000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/wallet-enrich",
        "description": "Wallet enrichment for any EVM wallet (0x address or ENS name) in one call: 0-100 risk score with low/medium/high level, sanctions exposure screening (OFAC SDN wallet lists: Tornado Cash, Lazarus, Garantex), on-chain activity on Ethereum + Base (native balance, transaction count, contract-vs-EOA detection) and labels (ENS reverse record, GoPlus address-security flags: phishing, mixer, cybercrime, money laundering, blacklist). Built for agents that need wallet enrichment + risk + sanctions data before paying, onboarding or transacting with a counterparty. No charge on service failure. Ed25519-signed. $0.15 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.",
        "maxAmountRequired": "150000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/wallet-enrich",
      "tags": [
        "data",
        "security",
        "risk",
        "sanctions",
        "wallet",
        "x402"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Wallet enrichment for any EVM wallet (0x address or ENS name) in one call: 0-100 risk score with low/medium/high level, sanctions exposure screening (OFAC SDN wallet lists: Tornado Cash, Lazarus, Garantex), on-chain activity on Ethereum + Base (native balance, transaction count, contract-vs-EOA detection) and labels (ENS reverse record, GoPlus address-security flags: phishing, mixer, cybercrime, money laundering, blacklist). Built for agents that need wallet enrichment + risk + sanctions data before paying, onboarding or transacting with a counterparty. No charge on service failure. Ed25519-signed. $0.15 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "address": "vitalik.eth"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "schema": {
              "type": "object",
              "required": [
                "ok",
                "niche"
              ],
              "properties": {
                "ok": {
                  "type": "boolean"
                },
                "error": {
                  "type": "string"
                },
                "niche": {
                  "type": "string"
                },
                "result": {
                  "type": "object",
                  "properties": {
                    "ens": {
                      "type": "string"
                    },
                    "risk": {
                      "type": "object"
                    },
                    "labels": {
                      "type": "array"
                    },
                    "address": {
                      "type": "string"
                    },
                    "activity": {
                      "type": "object"
                    },
                    "sanctions": {
                      "type": "object"
                    },
                    "disclaimer": {
                      "type": "string"
                    },
                    "data_sources": {
                      "type": "array"
                    }
                  }
                },
                "receipt": {
                  "type": "object"
                }
              }
            },
            "example": {
              "ok": true,
              "niche": "wallet_enrich",
              "result": {
                "ens": "vitalik.eth",
                "risk": {
                  "level": "low",
                  "score": 0,
                  "reasons": []
                },
                "labels": [
                  "ens:vitalik.eth"
                ],
                "address": "0x...",
                "activity": {
                  "ethereum": {
                    "tx_count": 0,
                    "balance_eth": 0,
                    "is_contract": false
                  }
                },
                "sanctions": {
                  "match": null,
                  "status": "CLEAR",
                  "lists_checked": [
                    "OFAC_SDN_wallets"
                  ]
                }
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "address"
                  ],
                  "properties": {
                    "address": {
                      "type": "string",
                      "description": "EVM wallet address (0x...) or ENS name (e.g. vitalik.eth)"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/dex-pair-price",
        "description": "Real-time on-chain DEX price, liquidity and 24h volume for any pool/token on any chain via GeckoTerminal. For DeFi routing agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/dex-pair-price",
      "tags": [
        "DEX price",
        "pool liquidity",
        "on-chain price",
        "token price",
        "DEX pair"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Real-time on-chain DEX price, liquidity and 24h volume for any pool/token on any chain via GeckoTerminal. For DeFi routing agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "network": "base",
              "token_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "dex-pair-price",
              "result": {
                "network": "base",
                "liquidity": null,
                "price_usd": "1.0040515644",
                "volume_24h": null,
                "token_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
              },
              "provenance": {
                "url": "https://api.geckoterminal.com/api/v2/networks/base/tokens",
                "source": "SYNTHORA DEX Pair Price"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "network",
                    "token_address"
                  ],
                  "properties": {
                    "network": {
                      "type": "string",
                      "description": "network"
                    },
                    "token_address": {
                      "type": "string",
                      "description": "token_address"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/lifi-bridge-route-quote",
        "description": "Returns the best cross-chain bridge/swap route for a given source chain, destination chain, tokens and amount from LI.FI, including chosen bridge tool, estimated output, fees and gas. Powers autonomous cross-chain agents and agent-to-agent treasury movers that pick the cheapest, fastest bridge path for a transfer. Pay-per-call via x402 on Base. No charge on upstream failure.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/lifi-bridge-route-quote",
      "tags": [
        "lifi"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Returns the best cross-chain bridge/swap route for a given source chain, destination chain, tokens and amount from LI.FI, including chosen bridge tool, estimated output, fees and gas. Powers autonomous cross-chain agents and agent-to-agent treasury movers that pick the cheapest, fastest bridge path for a transfer. Pay-per-call via x402 on Base. No charge on upstream failure.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "toChain": "1",
              "toToken": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
              "fromChain": "8453",
              "fromToken": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "fromAmount": "1000000",
              "fromAddress": "0x15d30032981a77164ee9546542Ae4becDAc81cc8"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "lifi_bridge_route_quote",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "Returns the best cross-chain bridge/swap route for a given source chain, destination chain, tokens and amount from LI.FI, including chosen bridge tool, estimated output, fees and gas. Powers autonomou"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "320000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/codeaudit",
        "description": "Multi-LLM Smart Contract Audit: 3 independent LLM perspectives (security, logic, gas) + static pattern scan on Solidity/Vyper source. Severity: clean/low/medium/high/critical. Ed25519-signed, publishable on-chain. POST {\"source\":\"pragma solidity...\",\"language\":\"solidity\"} or {\"address\":\"0x..\",\"chain\":\"base\"} for Sourcify-verified contracts.",
        "maxAmountRequired": "320000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/codeaudit",
      "tags": [
        "security",
        "llm",
        "base"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Multi-LLM Smart Contract Audit: 3 independent LLM perspectives (security, logic, gas) + static pattern scan on Solidity/Vyper source. Severity: clean/low/medium/high/critical. Ed25519-signed, publishable on-chain. POST {\"source\":\"pragma solidity...\",\"language\":\"solidity\"} or {\"address\":\"0x..\",\"chain\":\"base\"} for Sourcify-verified contracts.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "source": "pragma solidity ^0.8.0; contract Vault { address public owner; mapping(address=>uint) public bal; constructor(){owner=msg.sender;} function deposit() external payable { bal[msg.sender]+=msg.value; } function withdraw(uint a) external { require(bal[msg.sender]>=a); (bool ok,)=msg.sender.call{value:a}(\"\"); require(ok); bal[msg.sender]-=a; } }",
              "language": "solidity"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "code_audit",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "source"
                  ],
                  "properties": {
                    "chain": {
                      "type": "string"
                    },
                    "source": {
                      "type": "string",
                      "description": "Solidity/Vyper source to audit"
                    },
                    "address": {
                      "type": "string",
                      "description": "OR a Sourcify-verified contract address"
                    },
                    "language": {
                      "type": "string"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "100000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/bridgerisk",
        "description": "Assess the security risk of a cross-chain bridge before routing funds through it. Combines live DefiLlama TVL and audit status with the full bridge-hack incident history and known-exploit analysis into a 0-100 risk score, a safe/caution/high_risk/critical signal and explicit risk factors. Use it for bridge risk and cross-chain due diligence. Ed25519-signed. 0.002 USDC on Base.",
        "maxAmountRequired": "100000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/bridgerisk",
      "tags": [
        "bridge risk",
        "cross-chain bridge safety",
        "bridge hack history",
        "cross-chain due diligence"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Assess the security risk of a cross-chain bridge before routing funds through it. Combines live DefiLlama TVL and audit status with the full bridge-hack incident history and known-exploit analysis into a 0-100 risk score, a safe/caution/high_risk/critical signal and explicit risk factors. Use it for bridge risk and cross-chain due diligence. Ed25519-signed. 0.002 USDC on Base.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "bridge": "stargate",
              "to_chain": "base",
              "amount_usd": 5000,
              "from_chain": "ethereum"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "schema": {
              "type": "object",
              "required": [
                "ok",
                "niche"
              ],
              "properties": {
                "ok": {
                  "type": "boolean"
                },
                "error": {
                  "type": "string"
                },
                "niche": {
                  "type": "string"
                },
                "result": {
                  "type": "object",
                  "properties": {
                    "bridge": {
                      "type": "string"
                    },
                    "signal": {
                      "type": "string"
                    },
                    "to_chain": {
                      "type": "string"
                    },
                    "amount_usd": {
                      "type": "number"
                    },
                    "from_chain": {
                      "type": "string"
                    },
                    "risk_score": {
                      "type": "number"
                    },
                    "audit_status": {
                      "type": "string"
                    },
                    "risk_factors": {
                      "type": "array"
                    },
                    "bridge_tvl_usd": {
                      "type": "number"
                    },
                    "volume_24h_usd": {
                      "type": "number"
                    }
                  }
                },
                "receipt": {
                  "type": "object"
                }
              }
            },
            "example": {
              "ok": true,
              "niche": "bridge_risk",
              "result": {
                "bridge": "stargate",
                "signal": "safe",
                "risk_score": 0,
                "audit_status": "audited",
                "risk_factors": [],
                "bridge_tvl_usd": 0,
                "incident_history": []
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "bridge"
                  ],
                  "properties": {
                    "bridge": {
                      "type": "string",
                      "description": "Bridge name e.g. stargate, across, hop, wormhole"
                    },
                    "to_chain": {
                      "type": "string"
                    },
                    "amount_usd": {
                      "type": "number"
                    },
                    "from_chain": {
                      "type": "string"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "100000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/txintent",
        "description": "Tx Intent Classifier: decodes the REAL intent of an on-chain transaction (Base/Ethereum) and returns an Ed25519-signed risk verdict (safe/review/suspicious/dangerous). Catches unlimited approvals, opaque selectors, value-to-contract, reverted tx. POST {\"tx_hash\":\"0x..\",\"chain\":\"base\"} or {\"to\":\"0x..\",\"data\":\"0x..\"}.",
        "maxAmountRequired": "100000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/txintent",
      "tags": [
        "data",
        "risk",
        "base"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Tx Intent Classifier: decodes the REAL intent of an on-chain transaction (Base/Ethereum) and returns an Ed25519-signed risk verdict (safe/review/suspicious/dangerous). Catches unlimited approvals, opaque selectors, value-to-contract, reverted tx. POST {\"tx_hash\":\"0x..\",\"chain\":\"base\"} or {\"to\":\"0x..\",\"data\":\"0x..\"}.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "chain": "base",
              "tx_hash": "0xafc895b0138314dcde8a410d309d9080c8cfbc816ba6f371b287e34f2695207f"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "tx_intent",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "tx_hash"
                  ],
                  "properties": {
                    "to": {
                      "type": "string"
                    },
                    "data": {
                      "type": "string"
                    },
                    "chain": {
                      "type": "string"
                    },
                    "tx_hash": {
                      "type": "string"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/cryptonews",
        "description": "SYNTHORA cryptonews: real-time crypto news headlines with sentiment, ranked by importance. Aggregates keyless RSS feeds (CryptoPanic, CoinDesk, CoinTelegraph, Decrypt, Bitcoin Magazine) into deduplicated, freshness-and-source-weighted top headlines, each scored with a lexical bull/bear sentiment (very_bullish.very_bearish) plus an overall market sentiment. Filter by asset (BTC, ETH, SOL, XRP, and more) to get only headlines about that coin. Built for trading and quant agents that need a cheap, fast crypto news + sentiment pulse. Ed25519-signed.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/cryptonews",
      "tags": [
        "sentiment",
        "market-intel",
        "crypto",
        "x402",
        "signed-verdict",
        "usdc"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA cryptonews: real-time crypto news headlines with sentiment, ranked by importance. Aggregates keyless RSS feeds (CryptoPanic, CoinDesk, CoinTelegraph, Decrypt, Bitcoin Magazine) into deduplicated, freshness-and-source-weighted top headlines, each scored with a lexical bull/bear sentiment (very_bullish.very_bearish) plus an overall market sentiment. Filter by asset (BTC, ETH, SOL, XRP, and more) to get only headlines about that coin. Built for trading and quant agents that need a cheap, fast crypto news + sentiment pulse. Ed25519-signed.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "asset": "BTC",
              "limit": 10
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "schema": {
              "type": "object",
              "required": [
                "ok",
                "niche"
              ],
              "properties": {
                "ok": {
                  "type": "boolean"
                },
                "error": {
                  "type": "string"
                },
                "niche": {
                  "type": "string"
                },
                "result": {
                  "type": "object",
                  "properties": {
                    "op": {
                      "type": "string"
                    },
                    "asset": {
                      "type": "string"
                    },
                    "count": {
                      "type": "number"
                    },
                    "sources": {
                      "type": "array"
                    },
                    "headlines": {
                      "type": "array"
                    },
                    "fetched_at": {
                      "type": "string"
                    },
                    "sentiment_score": {
                      "type": "number"
                    },
                    "overall_sentiment": {
                      "type": "string"
                    }
                  }
                },
                "receipt": {
                  "type": "object"
                }
              }
            },
            "example": {
              "ok": true,
              "niche": "cryptonews",
              "result": {
                "asset": "BTC",
                "count": 2,
                "sources": [
                  "CryptoPanic",
                  "CoinDesk",
                  "CoinTelegraph",
                  "Decrypt",
                  "BitcoinMagazine"
                ],
                "headlines": [
                  {
                    "ts": "2026-07-08T09:12:00+00:00",
                    "url": "https://www.coindesk.com/example",
                    "score": 2.31,
                    "title": "Bitcoin surges past resistance as ETF inflows hit record",
                    "source": "CoinDesk",
                    "sentiment": "very_bullish"
                  },
                  {
                    "ts": "2026-07-08T08:40:00+00:00",
                    "url": "https://cointelegraph.com/example",
                    "score": 1.08,
                    "title": "Analysts warn of BTC pullback risk near key level",
                    "source": "CoinTelegraph",
                    "sentiment": "bearish"
                  }
                ],
                "generated_at": "2026-07-08T09:15:00+00:00",
                "sentiment_score": 0.42,
                "overall_sentiment": "bullish"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [],
                  "properties": {
                    "asset": {
                      "type": "string",
                      "description": "Optional ticker to filter headlines, e.g. BTC, ETH, SOL"
                    },
                    "limit": {
                      "type": "integer",
                      "maximum": 50,
                      "minimum": 1,
                      "description": "Max headlines to return (default 10)"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "100000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/slippage",
        "description": "Slippage and price-impact oracle for any crypto pair: estimates expected slippage, price impact and effective execution price for a given trade size from live order-book depth and liquidity. Answers 'expected slippage for this swap', 'price impact of my order', 'orderbook liquidity / slippage', 'how much will I move the market' for execution and routing agents. Deterministic, Ed25519-signed. $0.001 USDC via x402 on Base. First call FREE per wallet — send header X-WALLET: 0x<your Base address>. No charge on upstream failure. SYNTHORA.",
        "maxAmountRequired": "100000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/slippage",
      "tags": [
        "slippage estimate",
        "orderbook liquidity / slippage",
        "price impact",
        "expected slippage",
        "execution cost",
        "slippage oracle"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Slippage and price-impact oracle for any crypto pair: estimates expected slippage, price impact and effective execution price for a given trade size from live order-book depth and liquidity. Answers 'expected slippage for this swap', 'price impact of my order', 'orderbook liquidity / slippage', 'how much will I move the market' for execution and routing agents. Deterministic, Ed25519-signed. $0.001 USDC via x402 on Base. First call FREE per wallet — send header X-WALLET: 0x<your Base address>. No charge on upstream failure. SYNTHORA.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "chain": "base",
              "fee_tier": 500,
              "token_in": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "amount_in": 1000000,
              "token_out": "0x4200000000000000000000000000000000000006"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "slippage_oracle",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "chain"
                  ],
                  "properties": {
                    "chain": {
                      "type": "string"
                    },
                    "fee_tier": {
                      "type": "integer"
                    },
                    "token_in": {
                      "type": "string"
                    },
                    "amount_in": {
                      "type": "integer"
                    },
                    "token_out": {
                      "type": "string"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/defidata",
        "description": "SYNTHORA defidata: deFi market-data feed: perp open interest, funding rate, mark price and a directional signal across top assets (BTC/ETH/SOL/…), plus optional per-asset verdict. Deterministic, Ed25519-signed. SYNTHORA. First call FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment).",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/defidata",
      "tags": [
        "crypto",
        "markets",
        "derivatives",
        "price",
        "defi",
        "onchain"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA defidata: deFi market-data feed: perp open interest, funding rate, mark price and a directional signal across top assets (BTC/ETH/SOL/…), plus optional per-asset verdict. Deterministic, Ed25519-signed. SYNTHORA. First call FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment).",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "slug": "defi-data",
              "limit": 5
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "defi_data",
              "result": {
                "feed": [
                  {
                    "asset": "BTC",
                    "signal": "neutral",
                    "mark_price": 97500,
                    "funding_rate": 0.000012,
                    "open_interest_usd": 2209942387.46
                  }
                ],
                "slug": "defi-data",
                "as_of": 1783322000,
                "count": 3,
                "signed": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "slug": {
                      "type": "string",
                      "description": "Use defi-data for the top-assets feed"
                    },
                    "asset": {
                      "type": "string",
                      "description": "Ticker for single-asset detail, e.g. BTC"
                    },
                    "limit": {
                      "type": "integer",
                      "description": "Feed size (default all top assets)"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/mcpscan",
        "description": "MCP Server Security Scan: probes an MCP server (JSON-RPC initialize + tools/list) and applies a deterministic rule engine over its tools — embedded secrets, dangerous shell/exec/filesystem capabilities, prompt-injection surface, hidden unicode, permissive input schemas, and auth/TLS/CORS headers — returning a security_score + findings[]. The trust layer for the agent economy. Zero-LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/mcpscan",
      "tags": [
        "MCP server security",
        "MCP scan",
        "tool security audit",
        "prompt injection surface",
        "agent security"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "MCP Server Security Scan: probes an MCP server (JSON-RPC initialize + tools/list) and applies a deterministic rule engine over its tools — embedded secrets, dangerous shell/exec/filesystem capabilities, prompt-injection surface, hidden unicode, permissive input schemas, and auth/TLS/CORS headers — returning a security_score + findings[]. The trust layer for the agent economy. Zero-LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "manifest": {
                "name": "demo-mcp",
                "tools": [
                  {
                    "name": "search",
                    "description": "web search"
                  },
                  {
                    "name": "fetch",
                    "description": "http fetch"
                  }
                ],
                "version": "1.0.0"
              }
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "mcp_scan",
              "result": {
                "counts": {
                  "low": 0,
                  "high": 2,
                  "medium": 2,
                  "critical": 1
                },
                "signed": "ed25519",
                "target": "https://mcp.example.dev/mcp",
                "verdict": "critico",
                "findings": [
                  {
                    "id": "MCP-S01",
                    "rule": "secret_in_manifest",
                    "tool": "read_file",
                    "detail": "openai_key embedded in tool",
                    "severity": "critical"
                  }
                ],
                "tools_scanned": 2,
                "security_score": 14
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "url": {
                      "type": "string",
                      "description": "MCP server URL (Streamable-HTTP endpoint)"
                    },
                    "manifest": {
                      "type": "object",
                      "description": "Or paste the MCP manifest (serverInfo + tools) directly"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/market-dominance",
        "description": "SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage points and a confidence grade — you get not just the number but whether the number can be trusted. Deterministic, Ed25519-signed. $0.05 USDC on Base.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/market-dominance",
      "tags": [
        "defi",
        "onchain",
        "analytics",
        "markets",
        "x402",
        "signed-verdict"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage points and a confidence grade — you get not just the number but whether the number can be trusted. Deterministic, Ed25519-signed. $0.05 USDC on Base.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "input": "latest"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "market_dominance",
              "result": {
                "senal": "DISCREPANCIA de 2.0474 pp entre los dos observadores sobre la dominancia de BTC: difieren en que universo de monedas cuentan; usa el dato con reserva",
                "activo": "BTC",
                "mercado": {
                  "cambio_mcap_24h_pct": 0.7526734248279898,
                  "vol_24h_usd__observador_1": 56761379043.38263,
                  "mcap_total_usd__observador_1": 2295392767065.4966,
                  "mcap_total_usd__observador_2": 2204884145726.574
                },
                "as_of_utc": "2026-08-05T18:32:32Z",
                "confianza": "media",
                "latencia_s": 0.34,
                "degradacion": {
                  "de": 2,
                  "fallos": [],
                  "fuentes_vivas": 2
                },
                "observadores": {
                  "n": 2,
                  "clase": "proveedores independientes de datos de mercado",
                  "independencia": "distinto universo de monedas contadas"
                },
                "dominancia_pct": {
                  "observador_1": 56.5425644813439,
                  "observador_2": 58.59
                },
                "discrepancia_pp": 2.0474,
                "dominancia_completa__observador_1": {
                  "bnb": 3.4844691054792953,
                  "btc": 56.5425644813439,
                  "eth": 10.09653383187638,
                  "sol": 1.8882736582960438,
                  "trx": 1.3550254187552544,
                  "xrp": 2.916078335417036,
                  "usdc": 3.131389199794474,
                  "usdt": 7.973493292224553,
                  "steth": 0.789703952729928,
                  "figr_heloc": 0.944722954428762
                }
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage points and a confidence grade — y"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/coingecko-crypto-price-history",
        "description": "Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtesting bots, and agent-to-agent analytics needing multi-day price series without a key. Pay-per-call via x402 on Base. No charge on upstream failure.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/coingecko-crypto-price-history",
      "tags": [
        "coingecko"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtesting bots, and agent-to-agent analytics needing multi-day price series without a key. Pay-per-call via x402 on Base. No charge on upstream failure.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "id": "bitcoin",
              "days": 7,
              "interval": "daily",
              "vs_currency": "usd"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "coingecko_crypto_price_history",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtest"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/commodity-macro",
        "description": "Gold, silver and major macro FX reference in one call for portfolio-hedging agents. ECB + metals reference. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failure.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/commodity-macro",
      "tags": [
        "commodity"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Gold, silver and major macro FX reference in one call for portfolio-hedging agents. ECB + metals reference. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failure.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "base": "USD",
              "symbols": "EUR,GBP,JPY,CHF"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "commodity_macro",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "Gold, silver and major macro FX reference in one call for portfolio-hedging agents. ECB + metals reference. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/protocol-revenue",
        "description": "Real-time fee revenue and 24h/7d/30d earnings for any DeFi protocol via DefiLlama Fees API.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/protocol-revenue",
      "tags": [
        "protocol revenue",
        "protocol fees",
        "DeFi earnings"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Real-time fee revenue and 24h/7d/30d earnings for any DeFi protocol via DefiLlama Fees API.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "protocol": "uniswap"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "protocol_revenue",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "Real-time fee revenue and 24h/7d/30d earnings for any DeFi protocol via DefiLlama Fees API."
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/onchain",
        "description": "SYNTHORA Onchain Primitives: multichain (Base/Ethereum/Polygon/Arbitrum/Optimism) transaction receipts, tx lookup, wallet nonce, contract/proxy (EIP-1967) detection, ENS resolution, ERC20 + native balances, contract introspection. Deterministic, Ed25519-signed. 0.001 USDC via x402 on Base. First call FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); after that 0.001 USDC per call.",
        "maxAmountRequired": "10000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/onchain",
      "tags": [
        "on-chain primitives",
        "transaction receipt",
        "wallet nonce",
        "ENS resolution",
        "ERC20 balance",
        "contract detection",
        "EIP-1967 proxy"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA Onchain Primitives: multichain (Base/Ethereum/Polygon/Arbitrum/Optimism) transaction receipts, tx lookup, wallet nonce, contract/proxy (EIP-1967) detection, ENS resolution, ERC20 + native balances, contract introspection. Deterministic, Ed25519-signed. 0.001 USDC via x402 on Base. First call FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); after that 0.001 USDC per call.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "op": "ens",
              "name": "vitalik.eth"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "schema": {
              "type": "object",
              "required": [
                "ok",
                "niche"
              ],
              "properties": {
                "ok": {
                  "type": "boolean"
                },
                "error": {
                  "type": "string"
                },
                "niche": {
                  "type": "string"
                },
                "result": {
                  "type": "object",
                  "properties": {
                    "op": {
                      "type": "string"
                    },
                    "ops": {
                      "type": "array"
                    },
                    "chain": {
                      "type": "string"
                    },
                    "chains": {
                      "type": "array"
                    },
                    "signed": {
                      "type": "boolean"
                    },
                    "source": {
                      "type": "string"
                    },
                    "address": {
                      "type": "string"
                    },
                    "is_contract": {
                      "type": "boolean"
                    }
                  }
                },
                "receipt": {
                  "type": "object"
                }
              }
            },
            "example": {
              "ok": true,
              "niche": "onchain",
              "result": {
                "op": "ens",
                "name": "vitalik.eth",
                "found": true,
                "signed": "ed25519",
                "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "op"
                  ],
                  "properties": {
                    "op": {
                      "enum": [
                        "ens",
                        "receipt",
                        "tx",
                        "nonce",
                        "code",
                        "proxy",
                        "balance",
                        "erc20-balance",
                        "contract",
                        "network"
                      ],
                      "type": "string",
                      "description": "Operation to perform"
                    },
                    "hash": {
                      "type": "string",
                      "description": "Tx hash 0x… (receipt/tx)"
                    },
                    "name": {
                      "type": "string",
                      "description": "ENS name e.g. vitalik.eth (ens)"
                    },
                    "chain": {
                      "enum": [
                        "base",
                        "ethereum",
                        "polygon",
                        "arbitrum",
                        "optimism"
                      ],
                      "type": "string",
                      "description": "Chain (default ethereum)"
                    },
                    "token": {
                      "type": "string",
                      "description": "ERC20 token address (erc20-balance)"
                    },
                    "address": {
                      "type": "string",
                      "description": "Address 0x… (nonce/code/proxy/balance/contract)"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "320000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/contractwatch",
        "description": "SYNTHORA contractwatch: verdict de seguridad de contrato on-chain que SI lee el bytecode (eth_getCode) y slots de proxy (EIP-1967/zeppelinos/UUPS/beacon), owner() y privilegios ocultos: honeypot, rug-pull, hidden mint. Correlacionado entre fuentes independientes y firmado Ed25519. 0.32 USDC via x402 on Base. POST {\"address\": \"0x...\", \"chain\": \"base\"}",
        "maxAmountRequired": "320000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/contractwatch",
      "tags": [
        "onchain",
        "security",
        "smart-contracts",
        "blockchain",
        "x402",
        "signed-verdict"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA contractwatch: verdict de seguridad de contrato on-chain que SI lee el bytecode (eth_getCode) y slots de proxy (EIP-1967/zeppelinos/UUPS/beacon), owner() y privilegios ocultos: honeypot, rug-pull, hidden mint. Correlacionado entre fuentes independientes y firmado Ed25519. 0.32 USDC via x402 on Base. POST {\"address\": \"0x...\", \"chain\": \"base\"}",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "chain": "base",
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "schema": {
              "type": "object",
              "required": [
                "ok",
                "niche"
              ],
              "properties": {
                "ok": {
                  "type": "boolean"
                },
                "error": {
                  "type": "string"
                },
                "niche": {
                  "type": "string"
                },
                "result": {
                  "type": "object",
                  "properties": {
                    "chain": {
                      "type": "string"
                    },
                    "flags": {
                      "type": "array"
                    },
                    "owner": {
                      "type": "string"
                    },
                    "proxy": {
                      "type": "boolean"
                    },
                    "address": {
                      "type": "string"
                    },
                    "changed": {
                      "type": "boolean"
                    },
                    "changes": {
                      "type": "array"
                    },
                    "verdict": {
                      "type": "string"
                    },
                    "verified": {
                      "type": "boolean"
                    },
                    "rationale": {
                      "type": "string"
                    },
                    "proxy_standard": {
                      "type": "string"
                    }
                  }
                },
                "receipt": {
                  "type": "object"
                }
              }
            },
            "example": {
              "ok": true,
              "niche": "contract_guard",
              "result": {
                "chain": "base",
                "flags": [
                  "código NO verificado en Sourcify",
                  "PROXY actualizable (zeppelinos) — el admin/owner puede cambiar la lógica (impl 0x2Ce6311d…)",
                  "..."
                ],
                "owner": "0x3ABd6f64A422225E61E435baE41db12096106df7",
                "proxy": true,
                "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "verdict": "medium",
                "verified": false,
                "rationale": "SIN verificar. Proxy actualizable (zeppelinos: riesgo de cambio de lógica). Tiene owner/control centralizado.",
                "disclaimer": "No es consejo financiero. Análisis automatizado de seguridad on-chain con procedencia firmada.",
                "proxy_standard": "zeppelinos"
              },
              "provenance": "<3 fuentes independientes>"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "SYNTHORA contractwatch: verdict de seguridad de contrato on-chain que SI lee el bytecode (eth_getCode) y slots de proxy (EIP-1967/zeppelinos/UUPS/beacon), owner() y privilegios ocultos: honeypot, rug-"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "320000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/walletrep",
        "description": "Score the risk and reputation of any EVM wallet address before you transact with it. Combines on-chain sanctions screening (Chainalysis oracle, TRM, OFAC) and GoPlus address-security flags (phishing, blacklist, mixer, malicious activity) with contract-vs-EOA detection, transaction history and balance into a 0-100 score and clean/suspicious/blacklisted tier. Use it for wallet screening, counterparty due diligence and KYT. Ed25519-signed. 0.01 USDC on Base.",
        "maxAmountRequired": "320000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/walletrep",
      "tags": [
        "wallet risk score",
        "wallet reputation",
        "wallet risk / sanctions screening",
        "sanctions screening",
        "OFAC",
        "counterparty risk",
        "phishing address",
        "blacklist check",
        "KYT"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Score the risk and reputation of any EVM wallet address before you transact with it. Combines on-chain sanctions screening (Chainalysis oracle, TRM, OFAC) and GoPlus address-security flags (phishing, blacklist, mixer, malicious activity) with contract-vs-EOA detection, transaction history and balance into a 0-100 score and clean/suspicious/blacklisted tier. Use it for wallet screening, counterparty due diligence and KYT. Ed25519-signed. 0.01 USDC on Base.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "chain": "ethereum",
              "address": "0x28C6c06298d514Db089934071355E5743bf21d60"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "wallet_rep",
              "result": {
                "flags": [],
                "address": "0x...",
                "tx_count": 0,
                "risk_tier": "clean",
                "sanctioned": false,
                "is_contract": false,
                "goplus_flags": [],
                "reputation_score": 100,
                "sanctions_sources": []
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "address"
                  ],
                  "properties": {
                    "chain": {
                      "enum": [
                        "base",
                        "ethereum"
                      ],
                      "type": "string",
                      "description": "Chain (default base)"
                    },
                    "address": {
                      "type": "string",
                      "description": "EVM wallet address (0x...)"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/deliver",
        "description": "Audit a domain's email deliverability and sender reputation. Checks SPF, DKIM selectors, DMARC policy strength (reject/quarantine/none), BIMI, MX and PTR records, returning a spam score and prioritized fixes. Use it to assess inbox placement, email authentication and domain reputation before sending. Deterministic DNS-only, Ed25519-signed. 0.001 USDC on Base. First call FREE per wallet — send header X-WALLET: 0x<your Base address> (no payment); then \\ per call.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/deliver",
      "tags": [
        "deliver"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Audit a domain's email deliverability and sender reputation. Checks SPF, DKIM selectors, DMARC policy strength (reject/quarantine/none), BIMI, MX and PTR records, returning a spam score and prioritized fixes. Use it to assess inbox placement, email authentication and domain reputation before sending. Deterministic DNS-only, Ed25519-signed. 0.001 USDC on Base. First call FREE per wallet — send header X-WALLET: 0x<your Base address> (no payment); then \\ per call.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "domain": "example.com"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "deliverability",
              "result": {
                "mx": [],
                "spf": {},
                "dkim": {},
                "dmarc": {},
                "score": 100,
                "domain": "example.com",
                "verdict": "good",
                "recommendations": []
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "domain"
                  ],
                  "properties": {
                    "domain": {
                      "type": "string",
                      "description": "Domain or email address to audit"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/yahoo-equity-delayed-quote",
        "description": "Delayed real-time quote and intraday OHLCV for any stock or ETF ticker (price, day high/low, 52-week range, volume) from Yahoo Finance's keyless chart endpoint (JSON). Powers autonomous equity-screening agents and agent-to-agent trading bots needing per-symbol quotes without an API key. Pay-per-call via x402 on Base. No charge on upstream failure.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/yahoo-equity-delayed-quote",
      "tags": [
        "yahoo"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Delayed real-time quote and intraday OHLCV for any stock or ETF ticker (price, day high/low, 52-week range, volume) from Yahoo Finance's keyless chart endpoint (JSON). Powers autonomous equity-screening agents and agent-to-agent trading bots needing per-symbol quotes without an API key. Pay-per-call via x402 on Base. No charge on upstream failure.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "range": "5d",
              "symbol": "AAPL",
              "interval": "1d"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "yahoo_equity_delayed_quote",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "Delayed real-time quote and intraday OHLCV for any stock or ETF ticker (price, day high/low, 52-week range, volume) from Yahoo Finance's keyless chart endpoint (JSON). Powers autonomous equity-screeni"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/prediction-markets",
        "description": "Top prediction markets from Polymarket + Kalshi: implied probability, bid-ask spread, liquidity, volume and freshness seal. Essential feed for autonomous trading, political-risk and allocation agents. $0.001 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
        "maxAmountRequired": "10000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/prediction-markets",
      "tags": [
        "prediction"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Top prediction markets from Polymarket + Kalshi: implied probability, bid-ask spread, liquidity, volume and freshness seal. Essential feed for autonomous trading, political-risk and allocation agents. $0.001 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "limit": 10,
              "source": "all",
              "min_liquidity": 1000
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "prediction_markets",
              "result": {
                "count": 1,
                "source": "all",
                "markets": [
                  {
                    "id": "559651",
                    "spread": 0.01,
                    "end_date": "2026-12-31T00:00:00Z",
                    "exchange": "polymarket",
                    "question": "Xi Jinping out before 2027?",
                    "volume_usd": 1234567.89,
                    "liquidity_usd": 278050.28,
                    "probability_yes": 0.05
                  }
                ],
                "freshness_utc": "2026-08-07T12:00:00Z",
                "total_liquidity_usd": 278050.28
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [],
                  "properties": {
                    "limit": {
                      "type": "integer",
                      "description": "max markets to return (1-50, default 10)"
                    },
                    "source": {
                      "enum": [
                        "all",
                        "polymarket",
                        "kalshi"
                      ],
                      "type": "string",
                      "description": "exchange filter"
                    },
                    "min_liquidity": {
                      "type": "number",
                      "description": "minimum liquidity in USD (default 1000)"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/businessrisk",
        "description": "Counterparty business-risk verdict: one call fuses OFAC/EU sanctions screening, on-chain wallet reputation, and token/pool contract risk into a single weighted risk_score (0-100), a kill/pivot/proceed verdict, and reason_codes naming which sub-signal drove it. Weights: sanctions 0.50, wallet 0.30, token 0.20, renormalised if a leg is unavailable; a sanctions hit is a hard KILL floor. Degrades gracefully — a failed sub-check is dropped, never crashes the verdict. Deterministic, no LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/businessrisk",
      "tags": [
        "counterparty risk",
        "business risk score",
        "sanctions screening",
        "wallet reputation",
        "token risk"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Counterparty business-risk verdict: one call fuses OFAC/EU sanctions screening, on-chain wallet reputation, and token/pool contract risk into a single weighted risk_score (0-100), a kill/pivot/proceed verdict, and reason_codes naming which sub-signal drove it. Weights: sanctions 0.50, wallet 0.30, token 0.20, renormalised if a leg is unavailable; a sanctions hit is a hard KILL floor. Degrades gracefully — a failed sub-check is dropped, never crashes the verdict. Deterministic, no LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "address": "0x28C6c06298d514Db089934071355E5743bf21d60"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "business_risk",
              "result": {
                "checks": {
                  "wallet_rep": "ok",
                  "defi_verdict": "ok",
                  "aml_screening": "ok"
                },
                "summary": "PIVOT: elevated risk (62.5/100)...",
                "verdict": "pivot",
                "risk_tier": "elevated",
                "disclaimer": "Deterministic composite risk verdict... Ed25519-signed.",
                "risk_score": 62.5,
                "sub_results": {
                  "wallet_rep": {},
                  "defi_verdict": {},
                  "aml_screening": {}
                },
                "reason_codes": [
                  "WALLET_SUSPICIOUS: reputation=45/100 (0 transacciones)",
                  "TOKEN_CAUTION: contract risk_level=medium, verdict=monitor"
                ],
                "signals_used": 3,
                "token_address": "0x8335...2913",
                "weights_applied": {
                  "wallet_rep": 0.3,
                  "defi_verdict": 0.2,
                  "aml_screening": 0.5
                },
                "counterparty_address": "0x28C6...1d60"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "anyOf": [
                    {
                      "required": [
                        "address"
                      ]
                    },
                    {
                      "required": [
                        "token"
                      ]
                    }
                  ],
                  "properties": {
                    "token": {
                      "type": "string",
                      "description": "Token or pool contract (0x-40hex) — screened for contract risk"
                    },
                    "address": {
                      "type": "string",
                      "description": "Counterparty EVM wallet (0x-40hex) — screened for sanctions + reputation"
                    },
                    "apy_pct": {
                      "type": "number",
                      "description": "Optional APY passthrough to the DeFi risk leg"
                    },
                    "tvl_usd": {
                      "type": "number",
                      "description": "Optional TVL passthrough to the DeFi risk leg"
                    },
                    "protocol": {
                      "type": "string",
                      "description": "Optional protocol name for the token/pool"
                    },
                    "duration_days": {
                      "type": "integer",
                      "description": "Optional holding period passthrough"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/sanctions-screen",
        "description": "SYNTHORA sanctions-screen: sanctions screening with MATCH / CLEAR verdict over 4 official downloads (OFAC SDN primary and alias lists, UN, OpenSanctions). Multilingual, tested on Cyrillic transliterations.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/sanctions-screen",
      "tags": [
        "sanctions"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA sanctions-screen: sanctions screening with MATCH / CLEAR verdict over 4 official downloads (OFAC SDN primary and alias lists, UN, OpenSanctions). Multilingual, tested on Cyrillic transliterations.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "name": "Vladimir Putin"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "sanctions_screen",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "SYNTHORA sanctions-screen: sanctions screening with MATCH / CLEAR verdict over 4 official downloads (OFAC SDN primary and alias lists, UN, OpenSanctions). Multilingual, tested on Cyrillic transliterat"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/polymarket-markets",
        "description": "Search prediction markets ACROSS PLATFORMS (Polymarket + Kalshi) in one call: live prices, implied probability, volume, liquidity, end date and market conviction. Server-side search that actually finds the market (bitcoin, fed, election, geopolitics). For trading and forecasting agents tracking event odds. $0.05 USDC x402 Base. Input: {\"input\": \"bitcoin\"} (optional filter). Ed25519-signed.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/polymarket-markets",
      "tags": [
        "prediction-markets",
        "odds",
        "crypto",
        "x402",
        "signed-verdict",
        "usdc"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Search prediction markets ACROSS PLATFORMS (Polymarket + Kalshi) in one call: live prices, implied probability, volume, liquidity, end date and market conviction. Server-side search that actually finds the market (bitcoin, fed, election, geopolitics). For trading and forecasting agents tracking event odds. $0.05 USDC x402 Base. Input: {\"input\": \"bitcoin\"} (optional filter). Ed25519-signed.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "input": "bitcoin"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "polymarket_markets",
              "result": {
                "nota": "ningun mercado activo coincide con ese filtro; no se devuelven otros para no dar por bueno lo que no se pidio",
                "filtro": "bitcoin",
                "fuente": "<omitido en el ejemplo publico>",
                "markets": [],
                "as_of_utc": "2026-08-05T16:31:36Z",
                "latencia_s": 0.19,
                "n_mercados": 0,
                "sin_coincidencias": true,
                "mercados_minados__observador_1": 0
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "Search prediction markets ACROSS PLATFORMS (Polymarket + Kalshi) in one call: live prices, implied probability, volume, liquidity, end date and market conviction. Server-side search that actually find"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "5000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/llm-smart",
        "description": "SYNTHORA LLM Gateway SMART: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Large free-tier models (llama-3.3-70b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {\"messages\":[{\"role\":\"user\",\"content\":\"...\"}]} (or {\"prompt\":\"...\"}).",
        "maxAmountRequired": "5000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/llm-smart",
      "tags": [
        "llm",
        "inference",
        "openai-compatible",
        "chat-completions",
        "x402",
        "usdc"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA LLM Gateway SMART: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Large free-tier models (llama-3.3-70b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {\"messages\":[{\"role\":\"user\",\"content\":\"...\"}]} (or {\"prompt\":\"...\"}).",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "model": "llm-smart",
              "messages": [
                {
                  "role": "user",
                  "content": "Say hello in one word"
                }
              ]
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "llm_smart",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "anyOf": [
                    {
                      "required": [
                        "messages"
                      ]
                    },
                    {
                      "required": [
                        "prompt"
                      ]
                    }
                  ],
                  "properties": {
                    "model": {
                      "type": "string",
                      "description": "Etiqueta aceptada; el tier fija el modelo real"
                    },
                    "prompt": {
                      "type": "string",
                      "description": "Atajo sin messages"
                    },
                    "system": {
                      "type": "string",
                      "description": "System prompt opcional (con prompt)"
                    },
                    "messages": {
                      "type": "array",
                      "items": {
                        "type": "object"
                      },
                      "description": "OpenAI chat messages"
                    },
                    "max_tokens": {
                      "type": "integer",
                      "description": "Max output tokens (default 256, cap 1024)"
                    },
                    "temperature": {
                      "type": "number"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "320000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/tokenrisk",
        "description": "Detect honeypots, rug-pulls and malicious tokens before buying or approving. Combines GoPlus token-security (honeypot simulation, buy/sell tax, mintable, pausable, hidden owner, LP concentration, holder count) with bytecode analysis and owner-renounce checks into a safe/caution/risky/rug_pull verdict. Use it for token security, rug-pull detection and smart-contract risk. Ed25519-signed. 0.02 USDC on Base.",
        "maxAmountRequired": "320000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/tokenrisk",
      "tags": [
        "token security",
        "is this token a honeypot",
        "honeypot check",
        "rug pull detection",
        "token risk score",
        "token security check before approve",
        "buy sell tax",
        "mintable pausable",
        "hidden owner",
        "ownership renounced",
        "smart contract risk",
        "GoPlus"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Detect honeypots, rug-pulls and malicious tokens before buying or approving. Combines GoPlus token-security (honeypot simulation, buy/sell tax, mintable, pausable, hidden owner, LP concentration, holder count) with bytecode analysis and owner-renounce checks into a safe/caution/risky/rug_pull verdict. Use it for token security, rug-pull detection and smart-contract risk. Ed25519-signed. 0.02 USDC on Base.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "chain": "base",
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "token_risk",
              "result": {
                "flags": [],
                "goplus": {
                  "buy_tax": "0",
                  "sell_tax": "0",
                  "is_honeypot": "0"
                },
                "verdict": "safe",
                "risk_level": "low",
                "token_symbol": "USDC",
                "owner_renounced": true
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "address"
                  ],
                  "properties": {
                    "chain": {
                      "enum": [
                        "base",
                        "ethereum"
                      ],
                      "type": "string",
                      "description": "Chain (default base)"
                    },
                    "address": {
                      "type": "string",
                      "description": "Token contract address (0x...)"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "100000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/amlscreen",
        "description": "Screen a crypto wallet address against global sanctions and illicit-activity intelligence. Cross-checks the on-chain Chainalysis sanctions oracle, TRM screening, OFAC SDN and GoPlus address flags (mixer, phishing, laundering), returning a sanctioned yes/no, matched lists and an AML risk score. Use it for AML compliance, sanctions screening and KYT before onboarding or paying an address. Ed25519-signed. 0.005 USDC on Base.",
        "maxAmountRequired": "100000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/amlscreen",
      "tags": [
        "AML screening",
        "sanctions screening",
        "wallet risk / sanctions screening",
        "OFAC SDN",
        "Chainalysis",
        "TRM",
        "KYT",
        "illicit activity"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Screen a crypto wallet address against global sanctions and illicit-activity intelligence. Cross-checks the on-chain Chainalysis sanctions oracle, TRM screening, OFAC SDN and GoPlus address flags (mixer, phishing, laundering), returning a sanctioned yes/no, matched lists and an AML risk score. Use it for AML compliance, sanctions screening and KYT before onboarding or paying an address. Ed25519-signed. 0.005 USDC on Base.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "address": "0x28C6c06298d514Db089934071355E5743bf21d60"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "schema": {
              "type": "object",
              "required": [
                "ok",
                "niche"
              ],
              "properties": {
                "ok": {
                  "type": "boolean"
                },
                "error": {
                  "type": "string"
                },
                "niche": {
                  "type": "string"
                },
                "result": {
                  "type": "object",
                  "properties": {
                    "hits": {
                      "type": "array"
                    },
                    "input": {
                      "type": "string"
                    },
                    "signal": {
                      "type": "string"
                    },
                    "check_type": {
                      "type": "string"
                    },
                    "risk_score": {
                      "type": "number"
                    },
                    "lists_checked": {
                      "type": "array"
                    }
                  }
                },
                "receipt": {
                  "type": "object"
                }
              }
            },
            "example": {
              "ok": true,
              "niche": "aml_screening",
              "result": {
                "hits": [],
                "input": "0x...",
                "signal": "clean",
                "risk_score": 0,
                "lists_checked": [
                  "CHAINALYSIS_ORACLE",
                  "TRM_SANCTIONS",
                  "OFAC_SDN_inline",
                  "GOPLUS_ADDRESS"
                ]
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [],
                  "properties": {
                    "name": {
                      "type": "string",
                      "description": "Optional entity name for OFAC name search"
                    },
                    "address": {
                      "type": "string",
                      "description": "EVM address to screen (0x...)"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "5000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/llm-fast",
        "description": "SYNTHORA LLM Gateway FAST: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Fast free-tier models (llama-3.1-8b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {\"messages\":[{\"role\":\"user\",\"content\":\"...\"}]} (or {\"prompt\":\"...\"}).",
        "maxAmountRequired": "5000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/llm-fast",
      "tags": [
        "llm",
        "inference",
        "openai-compatible",
        "chat-completions",
        "x402",
        "usdc"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA LLM Gateway FAST: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Fast free-tier models (llama-3.1-8b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {\"messages\":[{\"role\":\"user\",\"content\":\"...\"}]} (or {\"prompt\":\"...\"}).",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "model": "llm-fast",
              "messages": [
                {
                  "role": "user",
                  "content": "Say hello in one word"
                }
              ]
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "llm_fast",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "anyOf": [
                    {
                      "required": [
                        "messages"
                      ]
                    },
                    {
                      "required": [
                        "prompt"
                      ]
                    }
                  ],
                  "properties": {
                    "model": {
                      "type": "string",
                      "description": "Etiqueta aceptada; el tier fija el modelo real"
                    },
                    "prompt": {
                      "type": "string",
                      "description": "Atajo sin messages"
                    },
                    "system": {
                      "type": "string",
                      "description": "System prompt opcional (con prompt)"
                    },
                    "messages": {
                      "type": "array",
                      "items": {
                        "type": "object"
                      },
                      "description": "OpenAI chat messages"
                    },
                    "max_tokens": {
                      "type": "integer",
                      "description": "Max output tokens (default 256, cap 1024)"
                    },
                    "temperature": {
                      "type": "number"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/regwatch",
        "description": "SYNTHORA regwatch: x402 Registry Watch: signed Ed25519 deltas of the x402/A2A endpoint registry (payTo/listings/endpoints). Pay-per-event feed pull. POST {\"since\":\"<cursor|ISO>\",\"slug\":\"<slug>\",\"limit\":<=200}.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/regwatch",
      "tags": [
        "registry",
        "monitoring",
        "x402",
        "signed-verdict",
        "usdc"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA regwatch: x402 Registry Watch: signed Ed25519 deltas of the x402/A2A endpoint registry (payTo/listings/endpoints). Pay-per-event feed pull. POST {\"since\":\"<cursor|ISO>\",\"slug\":\"<slug>\",\"limit\":<=200}.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "slug": "x402",
              "limit": 10,
              "since": "2026-01-01"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "schema": {
              "type": "object",
              "required": [
                "ok",
                "niche"
              ],
              "properties": {
                "ok": {
                  "type": "boolean"
                },
                "error": {
                  "type": "string"
                },
                "niche": {
                  "type": "string"
                },
                "result": {
                  "type": "object",
                  "properties": {
                    "feed": {
                      "type": "array"
                    },
                    "as_of": {
                      "type": "string"
                    },
                    "count": {
                      "type": "number"
                    },
                    "cursor": {
                      "type": "string"
                    },
                    "source": {
                      "type": "string"
                    }
                  }
                },
                "receipt": {
                  "type": "object"
                }
              }
            },
            "example": {
              "ok": true,
              "niche": "registry_watch",
              "result": {
                "feed": [],
                "as_of": "2026-08-05T16:48:43Z",
                "count": 0,
                "cursor": null,
                "source": "registry-watch"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "slug"
                  ],
                  "properties": {
                    "slug": {
                      "type": "string"
                    },
                    "limit": {
                      "type": "integer"
                    },
                    "since": {
                      "type": "string"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/payto-preflight",
        "description": "x402 PayTo Pre-Flight: verify a payTo address against the live registry before paying. Detects payTo hijacking, stale endpoints and unknown resources. Deterministic, <200ms, no external network. 0.001 USDC via x402 on Base. SYNTHORA.",
        "maxAmountRequired": "10000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/payto-preflight",
      "tags": [
        "x402",
        "base"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "x402 PayTo Pre-Flight: verify a payTo address against the live registry before paying. Detects payTo hijacking, stale endpoints and unknown resources. Deterministic, <200ms, no external network. 0.001 USDC via x402 on Base. SYNTHORA.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "chain": "eip155:8453",
              "endpoint_url": "https://onchain.hergertsynthora.com/service",
              "expected_payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "payto_preflight",
              "result": {
                "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "active": true,
                "reason": "payTo vivo coincide con el esperado, endpoint active y fresco",
                "source": "scout_resource",
                "matched": true,
                "network": "eip155:8453",
                "verdict": "safe",
                "chain_ok": true,
                "endpoint": "https://onchain.hergertsynthora.com/service",
                "price_usd": 0.001,
                "checked_at": "2026-08-07T21:00:00Z",
                "live_payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
                "match_kind": "exact",
                "freshness_s": 120,
                "expected_payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "endpoint_url"
                  ],
                  "properties": {
                    "chain": {
                      "type": "string",
                      "description": "expected chain, e.g. eip155:8453"
                    },
                    "endpoint_url": {
                      "type": "string",
                      "description": "endpoint resource URL to verify"
                    },
                    "expected_payTo": {
                      "type": "string",
                      "description": "expected payTo address (0x...)"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "scheme": "exact",
        "network": "base",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/fear-greed",
        "description": "SYNTHORA fear-greed: indice de miedo/codicia con la VARIACION frente a ayer y el cruce de banda, no solo el valor. Fuente: alternative.me, fechada y con hash.",
        "outputSchema": {
          "input": {
            "body": {
              "input": "latest"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "fear_greed",
              "result": {
                "senal": "el indice cambia de 'Extreme Fear' a 'Fear': giro de regimen de sentimiento",
                "value": 27,
                "fuente": "<omitido en el ejemplo publico>",
                "serie_8d": [
                  27,
                  25,
                  "..."
                ],
                "as_of_utc": "2026-08-05T16:31:27Z",
                "maximo_8d": 29,
                "minimo_8d": 25,
                "latencia_s": 0.33,
                "delta_vs_ayer": 2,
                "classification": "Fear",
                "cambio_de_banda": true,
                "clasificacion_ayer": "Extreme Fear"
              }
            }
          }
        },
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 60
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "input": "latest"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "fear_greed",
              "result": {
                "senal": "el indice cambia de 'Extreme Fear' a 'Fear': giro de regimen de sentimiento",
                "value": 27,
                "fuente": "<omitido en el ejemplo publico>",
                "serie_8d": [
                  27,
                  25,
                  "..."
                ],
                "as_of_utc": "2026-08-05T16:31:27Z",
                "maximo_8d": 29,
                "minimo_8d": 25,
                "latencia_s": 0.33,
                "delta_vs_ayer": 2,
                "classification": "Fear",
                "cambio_de_banda": true,
                "clasificacion_ayer": "Extreme Fear"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "SYNTHORA fear-greed: indice de miedo/codicia con la VARIACION frente a ayer y el cruce de banda, no solo el valor. Fuente: alternative.me, fechada y con hash."
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 1
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/mtasts",
        "description": "SYNTHORA mtasts: sMTP transport-security audit: MTA-STS (RFC 8461) + TLS-RPT (RFC 8460). Resolves the policy DNS records, fetches and parses the well-known policy file, cross-validates the policy mx: patterns against the domain's real MX, and returns an enforce/report verdict. Complements SPF/DKIM/DMARC auditing with the TLS transport layer. Deterministic, Ed25519-signed. SYNTHORA.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/mtasts",
      "tags": [
        "domain",
        "email",
        "security",
        "infrastructure",
        "threat-intel",
        "exposure"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA mtasts: sMTP transport-security audit: MTA-STS (RFC 8461) + TLS-RPT (RFC 8460). Resolves the policy DNS records, fetches and parses the well-known policy file, cross-validates the policy mx: patterns against the domain's real MX, and returns an enforce/report verdict. Complements SPF/DKIM/DMARC auditing with the TLS transport layer. Deterministic, Ed25519-signed. SYNTHORA.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "op": "check",
              "domain": "example.com"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "mtasts",
              "result": {
                "score": 100,
                "domain": "example.com",
                "issues": [],
                "mta_sts": {
                  "mx": [
                    "*.mail.example.com"
                  ],
                  "mode": "enforce",
                  "max_age": 604800,
                  "dns_present": true,
                  "mx_matches_dns": true,
                  "policy_reachable": true
                },
                "tls_rpt": {
                  "present": true
                },
                "verdict": "enforced+reporting"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "domain"
                  ],
                  "properties": {
                    "op": {
                      "enum": [
                        "check",
                        "mtasts",
                        "tlsrpt"
                      ],
                      "type": "string",
                      "description": "Audit scope (default check = full)"
                    },
                    "domain": {
                      "type": "string",
                      "description": "Domain or email address to audit"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "30000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/registry-watch",
        "description": "Monitor registry changes in real-time with x402 M2M API. Signed x402 call. 0.03 USDC on Base.",
        "maxAmountRequired": "30000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/registry-watch",
      "tags": [
        "x402",
        "base",
        "feed"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Monitor registry changes in real-time with x402 M2M API. Signed x402 call. 0.03 USDC on Base.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "input": "latest"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "schema": {
              "type": "object",
              "required": [
                "ok",
                "niche"
              ],
              "properties": {
                "ok": {
                  "type": "boolean"
                },
                "error": {
                  "type": "string"
                },
                "niche": {
                  "type": "string"
                },
                "result": {
                  "type": "object",
                  "properties": {
                    "feed": {
                      "type": "array"
                    },
                    "as_of": {
                      "type": "string"
                    },
                    "count": {
                      "type": "number"
                    },
                    "cursor": {
                      "type": "string"
                    },
                    "source": {
                      "type": "string"
                    }
                  }
                },
                "receipt": {
                  "type": "object"
                }
              }
            },
            "example": {
              "ok": true,
              "niche": "registry_watch",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "SYNTHORA registry-watch: pay-per-event feed of signed Ed25519 deltas from the x402/M2M endpoint registry — new and changed endpoints, payTos and listings. Pull with {\"since\": \"<cursor|ISO>\", \"slug\": \""
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/openinterest",
        "description": "SYNTHORA Open Interest Oracle: live perpetual futures open interest, funding rates, mark price, premium and crowded long/short signal for 230+ assets via Hyperliquid. Ed25519-signed. First call FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment).",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/openinterest",
      "tags": [
        "crypto",
        "markets",
        "derivatives",
        "price",
        "x402",
        "signed-verdict"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA Open Interest Oracle: live perpetual futures open interest, funding rates, mark price, premium and crowded long/short signal for 230+ assets via Hyperliquid. Ed25519-signed. First call FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment).",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "asset": "BTC"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "schema": {
              "type": "object",
              "required": [
                "ok",
                "niche"
              ],
              "properties": {
                "ok": {
                  "type": "boolean"
                },
                "error": {
                  "type": "string"
                },
                "niche": {
                  "type": "string"
                },
                "result": {
                  "type": "object",
                  "properties": {
                    "note": {
                      "type": "string"
                    },
                    "asset": {
                      "type": "string"
                    },
                    "signed": {
                      "type": "boolean"
                    },
                    "source": {
                      "type": "string"
                    },
                    "total_perps": {
                      "type": "number"
                    },
                    "top_by_open_interest": {
                      "type": "array"
                    }
                  }
                },
                "receipt": {
                  "type": "object"
                }
              }
            },
            "example": {
              "ok": true,
              "niche": "open_interest",
              "result": {
                "asset": "BTC",
                "signal": "neutral",
                "signed": "ed25519",
                "mark_price": 97500,
                "funding_rate": 0.0000125,
                "open_interest_usd": 2260000000
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [],
                  "properties": {
                    "asset": {
                      "type": "string",
                      "description": "Perp symbol e.g. BTC, ETH, SOL. Omit for top-10 by OI"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "320000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/identity-risk",
        "description": "SYNTHORA identity-risk: brand-impersonation verdict (AUTHENTIC / DOUBTFUL / ACTIVE_IMPERSONATION) over decentralised social identities, correlated across independent sources.",
        "maxAmountRequired": "320000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/identity-risk",
      "tags": [
        "risk"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA identity-risk: brand-impersonation verdict (AUTHENTIC / DOUBTFUL / ACTIVE_IMPERSONATION) over decentralised social identities, correlated across independent sources.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "input": "vitalik.eth"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "identity_risk",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "SYNTHORA identity-risk: brand-impersonation verdict (AUTHENTIC / DOUBTFUL / ACTIVE_IMPERSONATION) over decentralised social identities, correlated across independent sources."
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/ohlcv-candles",
        "description": "Real-time and historical OHLCV candles (open/high/low/close/volume) for any crypto pair, any interval. For backtesting and signal agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/ohlcv-candles",
      "tags": [
        "OHLCV candles",
        "OHLCV candles for backtest",
        "candlestick data",
        "price history",
        "backtest data",
        "open high low close volume"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Real-time and historical OHLCV candles (open/high/low/close/volume) for any crypto pair, any interval. For backtesting and signal agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "limit": 24,
              "symbol": "ETHUSDT",
              "interval": "1h"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "ohlcv-candles",
              "result": {}
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "symbol",
                    "interval",
                    "limit"
                  ],
                  "properties": {
                    "limit": {
                      "type": "integer",
                      "description": "limit"
                    },
                    "symbol": {
                      "type": "string",
                      "description": "symbol"
                    },
                    "interval": {
                      "type": "string",
                      "description": "interval"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/translate",
        "description": "SYNTHORA translate: translate any text between 100+ languages with automatic source-language detection. Preserves tone, formatting and placeholders. Deterministic JSON output, Ed25519-signed. SYNTHORA.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/translate",
      "tags": [
        "nlp",
        "language",
        "inference",
        "x402",
        "signed-verdict",
        "usdc"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA translate: translate any text between 100+ languages with automatic source-language detection. Preserves tone, formatting and placeholders. Deterministic JSON output, Ed25519-signed. SYNTHORA.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "text": "Hello world",
              "target": "es"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "translate",
              "result": {
                "chars": 11,
                "signed": "ed25519",
                "target": "es",
                "detected": "en",
                "translation": "Hola mundo"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "text",
                    "target"
                  ],
                  "properties": {
                    "text": {
                      "type": "string",
                      "description": "Text to translate (max 4000 chars)"
                    },
                    "source": {
                      "type": "string",
                      "description": "Optional source language; auto-detected if omitted"
                    },
                    "target": {
                      "type": "string",
                      "description": "Target language ISO code or name, e.g. es, fr, Japanese"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/funding-rates",
        "description": "Real-time perpetual funding rates + mark price for any Binance futures symbol. Essential for delta-neutral and basis-trading agents. Free source, deterministic, instant JSON. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/funding-rates",
      "tags": [
        "perp funding rate",
        "perpetual funding",
        "funding rate",
        "delta neutral",
        "basis trading",
        "mark price"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Real-time perpetual funding rates + mark price for any Binance futures symbol. Essential for delta-neutral and basis-trading agents. Free source, deterministic, instant JSON. $0.01 USDC via x402 on Base. SYNTHORA. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "symbol": "BTCUSDT"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "funding-rates",
              "result": {
                "symbol": "BTCUSDT",
                "mark_price": "64266.30000000",
                "last_funding_rate": "0.00009163",
                "next_funding_time": 1783699200000
              },
              "provenance": {
                "url": "https://fapi.binance.com/fapi/v1/premiumIndex",
                "source": "SYNTHORA Perp Funding Rates"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "symbol"
                  ],
                  "properties": {
                    "symbol": {
                      "type": "string",
                      "description": "symbol"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/perps",
        "description": "SYNTHORA Perps Snapshot: live Hyperliquid perpetual futures snapshot per asset — mark price, oracle price, hourly funding rate (with 8h and APR derivations), open interest (USD), premium and 24h volume for 230+ perps, keyless. Complements the Open Interest oracle with the raw single-shot data a trading agent needs. Ed25519-signed.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/perps",
      "tags": [
        "crypto",
        "markets",
        "derivatives",
        "price",
        "x402",
        "signed-verdict"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA Perps Snapshot: live Hyperliquid perpetual futures snapshot per asset — mark price, oracle price, hourly funding rate (with 8h and APR derivations), open interest (USD), premium and 24h volume for 230+ perps, keyless. Complements the Open Interest oracle with the raw single-shot data a trading agent needs. Ed25519-signed.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "asset": "BTC"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "perps",
              "result": {
                "mark": 97500,
                "asset": "BTC",
                "oracle": 97490,
                "signed": "ed25519",
                "premium": 0.0001,
                "day_volume": 1850000000,
                "funding_rate": 0.0000125,
                "open_interest": 2260000000,
                "funding_apr_pct": 10.95
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [],
                  "properties": {
                    "asset": {
                      "type": "string",
                      "description": "Perp symbol e.g. BTC, ETH, SOL. Omit for top-10 by open interest"
                    },
                    "limit": {
                      "type": "integer",
                      "description": "Rows when no asset given (1-50, default 10)"
                    },
                    "history": {
                      "type": "boolean",
                      "description": "Include recent 8h funding history for the asset (default true)"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/prediction",
        "description": "Prediction Market Probability Oracle — real Polymarket odds (p_yes/p_no, volume, liquidity), not LLM guesses. POST a question; Ed25519-signed. For agents needing calibrated event probabilities.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/prediction",
      "tags": [
        "prediction"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Prediction Market Probability Oracle — real Polymarket odds (p_yes/p_no, volume, liquidity), not LLM guesses. POST a question; Ed25519-signed. For agents needing calibrated event probabilities.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "input": "latest"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "prediction_oracle",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "Prediction Market Probability Oracle — real Polymarket odds (p_yes/p_no, volume, liquidity), not LLM guesses. POST a question; Ed25519-signed. For agents needing calibrated event probabilities."
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/protocol-tvl",
        "description": "SYNTHORA protocol-tvl: tVL de un protocolo con su CUOTA sobre el TVL total y su puesto en el ranking: contexto que el dato suelto no da.",
        "maxAmountRequired": "20000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/protocol-tvl",
      "tags": [
        "defi",
        "onchain",
        "analytics",
        "markets",
        "x402",
        "signed-verdict"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "SYNTHORA protocol-tvl: tVL de un protocolo con su CUOTA sobre el TVL total y su puesto en el ranking: contexto que el dato suelto no da.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "protocol": "lido"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "protocol_tvl",
              "result": {
                "senal": "concentra el 3.6007% del TVL DeFi total y ocupa el puesto 4",
                "fuente": "<omitido en el ejemplo publico>",
                "tvl_usd": 17522595363.252792,
                "protocol": "lido",
                "as_of_utc": "2026-08-05T16:31:36Z",
                "latencia_s": 0.52,
                "puesto_por_tvl": 4,
                "tvl_total_defi_usd": 486638092376.16034,
                "cuota_sobre_tvl_total_pct": 3.6007
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "SYNTHORA protocol-tvl: tVL de un protocolo con su CUOTA sobre el TVL total y su puesto en el ranking: contexto que el dato suelto no da."
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  },
  {
    "menu": {
      "sla": "https://api.hergertsynthora.com/sla",
      "menu": "https://api.hergertsynthora.com/llms.txt",
      "note": "SYNTHORA: 120+ machine-payable data and risk services. Pay per call in USDC on Base via x402. Signed Ed25519 receipts.",
      "terms": "https://hergertsynthora.com/terms",
      "catalog": "https://catalog.hergertsynthora.com/catalog.json",
      "openapi": "https://api.hergertsynthora.com/openapi.json"
    },
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://api.hergertsynthora.com/v1/usgs-realtime-streamflow",
        "description": "Returns real-time instantaneous streamflow (discharge) and gage height for any USGS water-monitoring site as JSON from USGS Water Services, keyless. Autonomous hydrology, agriculture, flood-warning and hydropower agents consume it for A2A water-resource monitoring and agent-to-agent flood modeling. Ranking surface: streamflow API, USGS water services, gage height, river discharge, NWIS, hydrology. Pay-per-call via x402 on Base. No charge on upstream failure.",
        "maxAmountRequired": "50000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 1
    },
    "resource": {
      "url": "https://api.hergertsynthora.com/v1/usgs-realtime-streamflow",
      "tags": [
        "usgs"
      ],
      "iconUrl": "https://api.hergertsynthora.com/icon.svg",
      "mimeType": "application/json",
      "description": "Returns real-time instantaneous streamflow (discharge) and gage height for any USGS water-monitoring site as JSON from USGS Water Services, keyless. Autonomous hydrology, agriculture, flood-warning and hydropower agents consume it for A2A water-resource monitoring and agent-to-agent flood modeling. Ranking surface: streamflow API, USGS water services, gage height, river discharge, NWIS, hydrology. Pay-per-call via x402 on Base. No charge on upstream failure.",
      "serviceName": "SYNTHORA"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "site": "01646500"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "usgs_realtime_streamflow",
              "result": {},
              "receipt": {
                "alg": "ed25519"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "input": {
                      "type": "string",
                      "description": "Returns real-time instantaneous streamflow (discharge) and gage height for any USGS water-monitoring site as JSON from USGS Water Services, keyless. Autonomous hydrology, agriculture, flood-warning an"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "delivery": {
        "note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
        "order": "compute -> failure gate -> verify -> settle -> deliver",
        "scope": "this covers service FAILURE, not verdict quality",
        "policy": "no-charge-on-service-failure",
        "verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
        "behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
      },
      "signature": {
        "alg": "ed25519",
        "canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
        "verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
        "jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
        "envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
        "sigEncoding": "hex(64B raw)",
        "publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
      }
    },
    "x402Version": 2
  }
]